Flaw tolerance in a viscoelastic strip

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	Flaw tolerance in a viscoelastic strip
	Chen L(陈磊); Chen SH(陈少华); Gao HJ
刊名	JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
	2013-07-01
通讯作者邮箱	chenshaohua72@hotmail.com
卷号	80 期号:4 页码:041014/1-041014/10
关键词	biological materials flaw tolerance fracture mechanics viscoelasticity loading rate
ISSN号	0021-8936
通讯作者	Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
产权排序	[Chen, Lei;Chen, Shaohua] LNM, Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100190, China;[Gao, Huajian] School of Engineering, Brown University, Providence, RI 02912, United States
中文摘要	Load-bearing biological materials such as bone, teeth, and nacre have acquired some interesting mechanical properties through evolution, one of which is the tolerance of cracklike flaws incurred during tissue function, growth, repair, and remodeling. While numerous studies in the literature have addressed flaw tolerance in elastic structures, so far there has been little investigation of this issue in time-dependent, viscoelastic systems, in spite of its importance to biological materials. In this paper, we investigate flaw tolerance in a visco-elastic strip under tension and derive the conditions under which a pre-existing center crack, irrespective of its size, will not grow before the material fails under uniform rupture. The analysis is based on the Griffith and cohesive zone models of crack growth in a visco-elastic material, taking into account the effects of the loading rate along with the fracture energy, Young's modulus, and theoretical strength of material.
学科主题	新型材料的力学问题
分类号	一类/力学重要期刊
收录类别	SCI ; EI
资助信息	National Science Foundation of China [10972220, 11125211,11021262); Project No.2012CB937500.
原文出处	http://dx.doi.org/10.1115/1.4007864
语种	英语
WOS记录号	WOS:000326177600028
公开日期	2013-09-12
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47436]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Chen L,Chen SH,Gao HJ. Flaw tolerance in a viscoelastic strip[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2013,80(4):041014/1-041014/10.
APA	陈磊,陈少华,&Gao HJ.(2013).Flaw tolerance in a viscoelastic strip.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,80(4),041014/1-041014/10.
MLA	陈磊,et al."Flaw tolerance in a viscoelastic strip".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 80.4(2013):041014/1-041014/10.